UFOMYST
CaseFormation1991

Northfield, MN, USA

7 UFOs flying in a train formation seen in Northfield MN, 1991

Report quality: Moderate51/100

This score reflects report-quality signals on file — how complete, corroborated, and precisely located the report is — not a claim about whether the sighting was a real craft.

  • Duration parsed: 480s, a plausible sighting length
  • Moderate witness text (62 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
1991-05-20
Where
Northfield, MN, USA
Shape
Formation
Duration
8 minutes
Geo
44.458, -93.162 · exact
Slug
formation-over-northfield-mn-1991-ba9f09
Wave

Part of a wave

  • Historical wave1989–1991

    The Belgian Triangle Wave

    Belgium (Eupen, Wallonia, Brussels corridor)

    The definitive black-triangle wave: silent, slow platforms with three corner lights, reported by gendarmes, air-traffic controllers, and thousands of citizens. On the night of March 30-31, 1990, Belgian F-16s scrambled…

    Open wave →

In context

  • Northfield, MN has 10 sightings on file here.
  • 1991 brought 4 reports from Minnesota.
  • The 1990s skewed 2.7% formation reports; the archive-wide figure is 3.3%.

Report

Full narrative lands with dossier import for famous cases, or the NUFORC free-text summary above for standard reports. This shell is SSR-ready: one D1 row (including connections_json) per page.